wolfe



no Model.)

H.-R. WOLFE. Smon oonsnmme FURNACE.

No. 212.930. Patented Feb. 27. 1883.

Izzvezrb A s. Hwk5mmw, Wnhhrgim n. c.

j taken in a line parallel with the bar.

NIT'ED STATES PATENT Fries,

HARVEY B. WOLFE, OF LOUISVILLE, KENTUCKY, ASSIGNOR TO CHARLES A. W'OLFEfTHOM'AS BRENNAN, W. GARNETT MUNN, AND JOHN LEAMY,

OF SAME PLACE.

S-MOK E-CONSUMING FURNACE.

SPECIFICATION forming part of Letters Patent No. 272,930, dated February 27, 1883.

Application filed October 6, 1882. (No model.)

To all whom it may concern Be it known that I, HARVEY R. WOLFE, residing at Louisville, Jefi'erson county, Kentucky, have invented certain new and useful ImprovementsinSmoke-Consuming Furnaces, of which the following is a full, clear, and exact description.

' My invention relates to-an improvement in smoke-consuming furnaces, in which steam is [o mingled with the products of combustion for the purpose of completing and perfecting combustion, increasing the heat, and consuming the smoke; and it consists, first, in the novel method ofinjectingthesteaminto thefire-chamher of the furnace; second, in the construction of a hollow grate-bar containing compartments for conveying and distributing the steam in the fire-cham her; third, the steam-boxes along the side of'the chamber, in combination with the grate-bar; fourth, an adjustable upright arm for conveying heated steam to the firechamber and throwing it upon thefire superheated and in any desired direction; fifth, the manner of supporting the adjustable arm and 2 operating it.

Figure l is an end view of furnace, partly in section. Fig.2 is a plan view of the bottom of the fire-chamber, partly in section. Fig. 3 is a vertical section of the hollow grate-bar,

Fig. 4 is a section of the ad ustable arm. Fig. 5 is a cross-section of thesatne, showing the mechanism for operating it.

A is the fire-chamber, below which is the ordinary ash-pit.

B is a boiler of any desired construction, and C a steam-dome on the boiler.

D D are the ordinary grate-bars, only partly shown. They extend the entire length of the 40 chamber, forming part of the bottom of the fire-chamber. Beside these ordinary gratebars, there is an additional larger grate-bar, E, extending the entire length of the fire-chamber. This bar, which is shown in section in 5 Fig. 3, is hollow and provided with several chambers for con veying steam to thefire-chamher.

The chambers F G, H and I open through the slots K K K in their-top directly into the fire-chamber. These chambers are connected together by the openings m m. The chamber K, which is independent of the others. is connected with a hollow upright arm, X, which is pivoted to the grate-bar E, as shown at O in Figs. 4 and 5. The arm Xis thus pivoted so as'to be adjustable backward and forward, for the purpose hereinafter described, and the slot K, connecting the chamber K with the arm X, is segment-shaped, so as to be open and afibrd a free passage for the steam in whatever position the arm X may be. The lower end of the arm X is provided w th the pivoted screw-bolt P, one end being pivoted to the upright arm X and the other passing through the front of the furnace, where it is adjusted by the nuts 0 '1'. As the lower end of the upright arm X is drawn forward, the top is thrown back, and vice versa.

S S are steam-boxes arranged along the side of the fire-chamber, and provided with nozzles s 8, through which steam is thrown into the fire-chamber, mingling with the products of combustion, or directly on the burning fuel in the fire-chamber. Steam is conveyed to the hollow grate-bar and the steam-boxes S S by any convenient number of pipes T from the steam-dome C. The nozzles s s of the steamboXes are so arranged that the jets of steam passing through them are thrown back in the .general line of the draft, as indicated by the Sc dotted lines ss. Steam is admitted to the chamber 13 in the hollow grate-bar at F. The slots at the top of the chambers F, G, H,- and I are provided at the front end with an overhanging deflector, U, which throws the steam backward and forms a current; and in order to make this currentclear, openings 0) o c are made in the walls between the chambers, at the top, and slantingparallel with the deflectors U, so that the steam passes freely from one chamber to another and out of these slots. The pressure of the steam keeps the slots K open. Steam is admitted to chamber K in the grate-bar E through the pipe W, and is con veyed through the slot K into the upright arm 5 X. This arm is provided at the top witha hollow T-head, Z, extending across the fire-chamber; or any convenient form of distributer may he used: This T-head has either a horizontal slot, 0 or small perforations for the passage of steam. As steam isforeed through the pipe W into the chamber K and upright arm X, it is distributed upon the tire or into the products of combustion through the slot 3 or small perforations, as indicated by the dotted linesy. Thesejets of steam may be thrown down into the fire by shortening the bolt P and throwing the T-head back toward the rear of the firechamber. They may be thrown upward by lengthening the bolt P and bringing the T- head forward, or they maybe thrown horizontally into the fire-chamber by adjusting the bolt 1? so that the arm X is perpendicular. The direction of these jets of steam may be regulated or changed at any time while the furnace is in operation by the bolt 1?.

Q Q are cooks for shutting off or regulating the steam.

The upright arm X may be located in any part ofthe fire-chamber m ostconvenient, where it will behcated by the fire, but preferably as shown in the drawings. As itpasses up into the fire-chamber it quickly becomes heated and heats the steam which passes through it,

from them hot and not mingled with air. It is also an important advantage to be able to adjust and alter the direction of the steam-jets thrown from the upright arm X. It is not necessary here to explain the effect of mingling steam with the products of combustion, as they are well known, and I do not claim, broadly, the injection of steam into the fire-chamber of a furnace; but

1 do claim as my invention-' 1. In a furnace provided with means for distributing superheated steam at varying angles to the tire, the hollow grate-bar E, provided with the deflecting-chambers F, G, H, and I, and independent chamber K, substantially as and for the purpose described.

2. The steam-conveyingarm X, provided with a regulating and adjusting screw, P, and so pivoted as to extend up into the fire-chamber of the furnace at or near the front end, in combination with the grate of said furnace, substantially as described.

3. In a furnace, in combination, the hollow gratebars, provided with deflecting-chambers and steam-connections for admitting steam to the fire, and the adjustable arm X for admitting superheated steam at various angles of inclination, the steam-boxes S S for admitting steam at both sides of the furnace and at an angle to the fire, substantially as described.

HARVEY RUDY WOLFE.

Witnesses:

JAS. T. A. BAKER, JAMES PAUL. 

